Hypnosis, childhood trauma, and dissociative identity disorder: toward an integrative theory.

It is contended that prevailing exogenous trauma theory provides in most cases neither a sufficient nor a necessary explanation for the current large number of diagnosed cases of dissociative identity disorder (multiple personality disorder) and related dissociative syndromes purported to have arisen as a response to severe early childhood physical and sexual abuse. Relevant aspects of instinctual drive theory, ego psychology, object relations theory, self psychology, social psychological theory, sociocultural influences, and experimental hypnosis findings are drawn on to demonstrate the importance of adopting a more integrative theoretical perspective in the diagnosis and treatment of severe dissociative syndromes. Further cooperative experimental and clinical research on the etiology, prevalence, and clinical manifestations of the group of dissociative disorders is strongly encouraged.